html,body{height:100%}
.main { height: 100%; padding: 100px 0 0; box-sizing: border-box ; position: relative; }
.headerDiv { height: 65px;  position: absolute; top: 0 ; left: 0 ; width: 100%; z-index:1000; }
.content { position:absolute;left:0px;right:0;top:65px;bottom:0;z-index:998;width:100%;height:auto;overflow:visible;overflow-y:auto;box-sizing:border-box  }
.layui-elem-field { margin-top: 10px;border-width: 2px; border-color: #f2f2f2;}

/**左侧*/
.layui-side {width:200px;height: 100%;position: absolute;}
.layui-side .layui-inline {position: relative;height: 20px; margin-top: 15px;margin-bottom: 15px;}
.layui-side .flowDivs {position: relative;top: 0px;left: 0;text-align: center ;}
.layui-side .flowDiv {position:relative;border:1px solid #0a7bfa;height: 50px;text-align: center;line-height: 50px;margin: 15px;overflow: hidden;/*内容超出后隐藏*/
    text-overflow: ellipsis;/* 超出内容显示为省略号*/
    white-space: nowrap;/*文本不进行换行*/}

/**主内容div*/
.mian-iframe-div {position:absolute;left:200px;right:0;top:0px;bottom:5%;height: 100%}
/** 神奇的，加上背景色就不会影响导航栏闪白色的情况 === 百思不得其解 */
#iframe_content {width: 95%;height: 100%;background-color: white}

.dtree-toolbar  .layui-nav-item a {padding:0 8px;}